#!/usr/bin/env python

# Copyright 2016 The Kubernetes Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

import unittest
from datetime import datetime

from .dateutil import UTC, TimezoneInfo, format_rfc3339, parse_rfc3339


class DateUtilTest(unittest.TestCase):

  def _parse_rfc3339_test(self, st, y, m, d, h, mn, s):
    actual = parse_rfc3339(st)
    expected = datetime(y, m, d, h, mn, s, 0, UTC)
    self.assertEqual(expected, actual)

  def test_parse_rfc3339(self):
    self._parse_rfc3339_test("2017-07-25T04:44:21Z", 2017, 7, 25, 4, 44, 21)
    self._parse_rfc3339_test("2017-07-25 04:44:21Z", 2017, 7, 25, 4, 44, 21)
    self._parse_rfc3339_test("2017-07-25T04:44:21", 2017, 7, 25, 4, 44, 21)
    self._parse_rfc3339_test("2017-07-25T04:44:21z", 2017, 7, 25, 4, 44, 21)
    self._parse_rfc3339_test("2017-07-25T04:44:21+03:00", 2017, 7, 25, 1, 44,
                             21)
    self._parse_rfc3339_test("2017-07-25T04:44:21-03:00", 2017, 7, 25, 7, 44,
                             21)

  def test_format_rfc3339(self):
    self.assertEqual(
        format_rfc3339(datetime(2017, 7, 25, 4, 44, 21, 0, UTC)),
        "2017-07-25T04:44:21Z")
    self.assertEqual(
        format_rfc3339(datetime(2017, 7, 25, 4, 44, 21, 0, TimezoneInfo(2, 0))),
        "2017-07-25T02:44:21Z")
    self.assertEqual(
        format_rfc3339(
            datetime(2017, 7, 25, 4, 44, 21, 0, TimezoneInfo(-2, 30))),
        "2017-07-25T07:14:21Z")